Helly Hansen Unisex Adult Heritage Pile One Piece - Warm Thermal Underwear for Skiing, Snowboarding & Winter Outdoor Activities

It is so warm and not even that thick you could move around freely. It is definitely worth the price if you want to stay warm. Personally, the only thing that is wrong with it is that it does not have pockets, which is absolutely fine. If you have to wear coveralls over it. I’ve only been in temperatures down to 5° with snow. I got a little chilled and I had to put a jacket over. For the most part, you won’t even need a jacket over your coveralls. And this is being outside 12 hours a day or night depending on the hitch. Trust me when I say you should buy this.